How much debt do they have to take to make such an investment?
In the entire group power train and vehicle development is budgeted at around 120 Billion a year, so this is just over half of that budget spread out over probably 5 years. These are not SV startups, they are enormous companies by revenue and investment (which is why they have low profits and aren't sexy to invest in )
Maybe they'll shut/slim down the combustion departments.